First-order phase transition in the Li2B12H12 system
The thermal decomposition of anhydrous Pa[3 with combining macron] Li2B12H12 was studied in situ by high resolution synchrotron X-ray diffraction. A first-order phase transition can be observed at 355 °C where the unit cell volume expands by ca. 8.7%. The expanded β-Li2B12H12 polymorph simultaneousl...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
R S C Publications
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/31525 |
| _version_ | 1848753404217655296 |
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| author | Paskevicius, Mark Pitt, M. Brown, David Sheppard, Drew Chumphongphan, Somwan Buckley, Craig |
| author_facet | Paskevicius, Mark Pitt, M. Brown, David Sheppard, Drew Chumphongphan, Somwan Buckley, Craig |
| author_sort | Paskevicius, Mark |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The thermal decomposition of anhydrous Pa[3 with combining macron] Li2B12H12 was studied in situ by high resolution synchrotron X-ray diffraction. A first-order phase transition can be observed at 355 °C where the unit cell volume expands by ca. 8.7%. The expanded β-Li2B12H12 polymorph simultaneously decomposes to a hydrogen poor γ-Li2B12H12−x phase. Expansion of the unit cell across the discontinuity is consistent with reorientational motion of B12H122− anions, and the presence of a frustrated Li+ lattice indicating Li ion conduction. |
| first_indexed | 2025-11-14T08:23:58Z |
| format | Journal Article |
| id | curtin-20.500.11937-31525 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:23:58Z |
| publishDate | 2013 |
| publisher | R S C Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-315252017-09-13T15:21:23Z First-order phase transition in the Li2B12H12 system Paskevicius, Mark Pitt, M. Brown, David Sheppard, Drew Chumphongphan, Somwan Buckley, Craig The thermal decomposition of anhydrous Pa[3 with combining macron] Li2B12H12 was studied in situ by high resolution synchrotron X-ray diffraction. A first-order phase transition can be observed at 355 °C where the unit cell volume expands by ca. 8.7%. The expanded β-Li2B12H12 polymorph simultaneously decomposes to a hydrogen poor γ-Li2B12H12−x phase. Expansion of the unit cell across the discontinuity is consistent with reorientational motion of B12H122− anions, and the presence of a frustrated Li+ lattice indicating Li ion conduction. 2013 Journal Article http://hdl.handle.net/20.500.11937/31525 10.1039/C3CP53090F R S C Publications fulltext |
| spellingShingle | Paskevicius, Mark Pitt, M. Brown, David Sheppard, Drew Chumphongphan, Somwan Buckley, Craig First-order phase transition in the Li2B12H12 system |
| title | First-order phase transition in the Li2B12H12 system |
| title_full | First-order phase transition in the Li2B12H12 system |
| title_fullStr | First-order phase transition in the Li2B12H12 system |
| title_full_unstemmed | First-order phase transition in the Li2B12H12 system |
| title_short | First-order phase transition in the Li2B12H12 system |
| title_sort | first-order phase transition in the li2b12h12 system |
| url | http://hdl.handle.net/20.500.11937/31525 |